aaaa aaae aaap aaar aaea aaep aapa aapt aara aare aarp aart aata aatt aeap aeer aer- aera aeta aetr aett aetx apap apar apat apax apea apep aper apet apex appa appr appt appx apra apre aprt apta apte aptt aptx arae arap arar arat arax area aree arep aret arex arpa arpe arr- arra arre arrr arrt arta arte artr artx at-t at-x ataa atae atap atar atat atax atea atee atep ater atex atpr atra atre atrp atrx atta atte attp attr axar axat axer eapp eara eare earp eart eata eate eeea eeee eera eeta eete eext epaa epee eper eppa eppp epra eprp epta epte epxp er-x erap erat erer eret erpa erpe erra erre erta etap etat etee eter etra etre etta ette exa- exer expr expt exrx exta exte extr paap paar paat paea paep paer papa pape papp papr par- para pare parp parr part pata pate patr patt peap pear peat peax peep peer peet pepa pepe per- pera pere perp perr pert peta pete petr pett ppap ppar pper pppa pppp ppta pptt prae prar prat pre- pree prep pret prex prtp prtr pter raat raep raer rapa rape rapp rapt rara rare rata rate ratp ratt raxa rea- reae reap rear reat reep reet repe repp repr rept rera rere rert reta rete retr rett rexx rpet rpta rrat rrrr rtee rtex rtpa rttp taa- taar taat taer tapa tape tapp tapr tapt tara tare tarp tarr tart tata tate tatr tatt tax- taxa taxe taxt tear teat teer teet tepa tepe tepp ter- tera tere terp terr teta tete tetr tett tetx texa text tpap tper tppa tppp tppr tpte tptp tptr traa trae trap trat trax tre- trea tree tret trex trpa trpe trpp trra trte trtr tter tttt txaa txtr xaar xara xare xate xeer xer- xera xert xexe xpax xper xpra xrep xtar xtea xtep xtra xxxx